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SA2532K Datasheet

IC型號：
SA2532K
PDF描述：
SINGLE CHIP TELEPHONE DEMO BOARD
文件大小：
621.49KB
PDF頁數(shù)：
27頁
芯片廠家：
SAMES

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sames

AN1500A

APPLICATION NOTE

SINGLE CHIP TELEPHONE DEMO BOARD

SA2532K

1 Scope

This application note describes the use of the SA2532K Single Chip Telephone IC developed specifically to meet

with India鈥檚 Department of Telecommunication (DOT) Specification for the Electronic Telephone Instruments. This

application note is based on the use of the multi-purpose demo board DB1500I with the SA2532K IC

2 Key Features

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High performance telephone with speech circuit, DTMF/Pulse dialer and tone ringer

Very few external low cost components

CMOS technology, far less sensitive to EMC

EMC proof single sided layout, provision for EMC blocking capacitors installed

Internally set real AC impedance to reduce external components

Sidetone programmable by two resistors and one capacitor

Ring frequency discrimination

Line loss compensation selectable by jumper

2 different flash timings selectable by 2 flash keys

31 digit last number redial

Sliding cursor protocol and pause key

One-touch repeat dialing

1 direct memory

Tone / Pulse switch

Modular connectors for handset and line cord, line connector a/b- terminals selectable by jumper

Layout prepared for 16kHz blocking filters

19-key SPST Keyboard on board

Tone LED output Indicator

Several hook transistor configurations

Over-voltage and over-current circuit options

AN1500A

PDS038-SA2532K-001

Rev. C

21-03-00

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